Primary Side of Delta-Star Transformer

I think o/c & E/F are necessary @ primary side and secondary side .

Sub -- Transformer protection Relay, make ABB, Type – RET 650

We are going to install one no 13.5 MVA, ( Pri . volts -- 11000,& Amps -- 708.6 Sec. volts -- 6600 & Amps – 1181.0 ),power transformer, vector group – yNd11,cooling – ONAN, -- at our cement plant at Meghalaya.

The said transformer will be charge with our own captive generation, i.e. 10.50 MW. Diesel Generator set.

Protection Scheme: ---

Code – 27, 59, 81A, 81B, 81C, 81D, 37, 32, 32A. LFR,

Current Transformer -- 2000/1/1, Qty – 4nos, & 1000/1/1, Qty – 03 nos. in your scope.

You are also requested to send your offer i.e. Price, delivery schedule & technical manual etc. subject to all those protections will be covered as per mentioned above protection including NGR.

Your immediate reply will be highly appreciated per return mail.